opusdev/vector-similarity-api

1'use strict';2 3var test = require('tape');4 5var getSideChannelWeakMap = require('../');6 7test('getSideChannelMap', { skip: typeof WeakMap !== 'function' && typeof Map !== 'function' }, function (t) {8	var getSideChannel = getSideChannelWeakMap || function () {9		throw new EvalError('should never happen');10	};11 12	t.test('export', function (st) {13		st.equal(typeof getSideChannel, 'function', 'is a function');14 15		st.equal(getSideChannel.length, 0, 'takes no arguments');16 17		var channel = getSideChannel();18		st.ok(channel, 'is truthy');19		st.equal(typeof channel, 'object', 'is an object');20		st.end();21	});22 23	t.test('assert', function (st) {24		var channel = getSideChannel();25		st['throws'](26			function () { channel.assert({}); },27			TypeError,28			'nonexistent value throws'29		);30 31		var o = {};32		channel.set(o, 'data');33		st.doesNotThrow(function () { channel.assert(o); }, 'existent value noops');34 35		st.end();36	});37 38	t.test('has', function (st) {39		var channel = getSideChannel();40		/** @type {unknown[]} */ var o = [];41 42		st.equal(channel.has(o), false, 'nonexistent value yields false');43 44		channel.set(o, 'foo');45		st.equal(channel.has(o), true, 'existent value yields true');46 47		st.equal(channel.has('abc'), false, 'non object value non existent yields false');48 49		channel.set('abc', 'foo');50		st.equal(channel.has('abc'), true, 'non object value that exists yields true');51 52		st.end();53	});54 55	t.test('get', function (st) {56		var channel = getSideChannel();57		var o = {};58		st.equal(channel.get(o), undefined, 'nonexistent value yields undefined');59 60		var data = {};61		channel.set(o, data);62		st.equal(channel.get(o), data, '"get" yields data set by "set"');63 64		st.end();65	});66 67	t.test('set', function (st) {68		var channel = getSideChannel();69		var o = function () {};70		st.equal(channel.get(o), undefined, 'value not set');71 72		channel.set(o, 42);73		st.equal(channel.get(o), 42, 'value was set');74 75		channel.set(o, Infinity);76		st.equal(channel.get(o), Infinity, 'value was set again');77 78		var o2 = {};79		channel.set(o2, 17);80		st.equal(channel.get(o), Infinity, 'o is not modified');81		st.equal(channel.get(o2), 17, 'o2 is set');82 83		channel.set(o, 14);84		st.equal(channel.get(o), 14, 'o is modified');85		st.equal(channel.get(o2), 17, 'o2 is not modified');86 87		st.end();88	});89 90	t.test('delete', function (st) {91		var channel = getSideChannel();92		var o = {};93		st.equal(channel['delete']({}), false, 'nonexistent value yields false');94 95		channel.set(o, 42);96		st.equal(channel.has(o), true, 'value is set');97 98		st.equal(channel['delete']({}), false, 'nonexistent value still yields false');99 100		st.equal(channel['delete'](o), true, 'deleted value yields true');101 102		st.equal(channel.has(o), false, 'value is no longer set');103 104		st.end();105	});106 107	t.end();108});109 110test('getSideChannelMap, no WeakMaps and/or Maps', { skip: typeof WeakMap === 'function' || typeof Map === 'function' }, function (t) {111	t.equal(getSideChannelWeakMap, false, 'is false');112 113	t.end();114});115